Block Heater - silly question. - Cherokee SRT8 Forum
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post #1 of 4 (permalink) Old 01-25-2013, 07:13 PM Thread Starter
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Block Heater - silly question.

How do I know it's working?


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post #2 of 4 (permalink) Old 01-25-2013, 07:38 PM
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On my other Jeeps where I used it the engine is warm and when you first start it you should have almost instant warm air coming out of the vents. At times you could even tell on the hood if wasn't too cold that the snow would slowly melt.

Other than that you can't really tell that it is working.

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post #3 of 4 (permalink) Old 01-25-2013, 07:41 PM
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When you start the truck, check your engine temp on your evic.
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post #4 of 4 (permalink) Old 01-25-2013, 07:53 PM
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When you plug it in and the engine is cold, you should start to hear a sizzling or clicking sound as the oil warms up.

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